Head gasket sealer is a product ... And even if you successfully fix the leaking issue with the sealer, it’s still a good idea to let the mechanic inspect and, if possible, replace your gasket. This ...

A real fix is to replace the head gasket, but this is costly. A head gasket sealer is a good temporary fix. The amount of sealant you use depends on how big your engine is. Vehicles with eight or ...